<template>
  <div class="playlist">
    <h1>官方歌单</h1>
    <div class="wrapper" ref="wrapper">
      <ul class="content" ref="content">
        <li v-for="item in playlistData" :key="item.content_id" @click="selectPlayList(item)">
          <div class="cover-num">
            <img :src="item.cover" alt="" />
            <span>{{ (item.listen_num/10000)|numFilter(1) }}万</span>
          </div>
          <span>{{ item.title }}</span>
        </li>
      </ul>
    </div>
  </div>
</template>
<script>
import axios from "axios";
import BScroll from "better-scroll";
export default {
  data() {
    return {
      playlistData: [],
    };
  },
  methods: {
    getplaylist() {
      axios
        .get("/api/recommend/playlist/u")
        .then((res) => {
          +console.log(res.data.data.list);
          this.playlistData = res.data.data.list;
          this.betterScrollHorizontal(this.playlistData.length, 160);
        })
        .catch((err) => {
          console.error(err);
        });
    },
    betterScrollHorizontal(num, itemWidth) {
      let width = num * itemWidth;
      this.$refs.content.style.width = width + "px";
      this.$nextTick(() => {
        this.scroll = new BScroll(this.$refs.wrapper, {
          click: true,
          startX: 0,
          scrollX: true, //水平横向
          scrollY: false,
        });
      });
    },
    selectPlayList(item){
      const id=item.content_id
      // this.$router.push({
      //   name:'PlayListDeatil',
      //   params:{id}
      // })
    this.$router.push({
      path:`/playlistdeatil/${id}`
    })
    }
  },
  mounted() {
    this.getplaylist();
  },
  filters:{
      numFilter(value,num){
          return parseFloat(value).toFixed(num)
      }
  }
};
</script>
<style scoped>
.playlist {
  width: 90%;
  margin: 0 auto;
}
.playlist > h1 {
  font-size: 18px;
  text-align: left;
}
.wrapper {
  width: 100%;
  overflow: hidden;
}
ul.content > li {
  width: 160px;
  display: inline-block;
  text-align: center;
  vertical-align: top;
}
ul.content > li img {
  width: 90%;
  border-radius: 20px;
}
ul.content > li > span {
  display: block;
  width: 90%;
  font-size: 12px;
  margin: 0 auto;
}
.cover-num{
    position: relative;
}
.cover-num>span{
    position: absolute;
    right: 10px;
    bottom: 5px;
    z-index: 100;
    background-color: gray;
    border-radius: 20px;
    display: block;
    width: 100px;
}
</style>